EDC | Amplifiers | Steps to analyze Transistor amplifier circuit

Steps to analyze Transistor amplifier circuit:

1. Draw the circuit diagram with coupling capacitor
2. Replace coupling capacitors, emitter bias capacitor by a short circuit
3. Replace DC source by a short (i.e., short circuit Vcc with ground.)
4. Identify the input terminals and output terminals (Example: In CE configuration, B-E - input terminal, C-E - output terminal)
5. Replace the transistor by its h-parameter model
6. Find the effective input impedance (Ri), output impedance (Ro) and hence admittance (1/Ro), Current gain (Ai), Voltage gain (Av) and Power gain (Ap).

Ri = (Vi/Ii), Ro = (Vo/Io), Ai = (Io/Ii), Av = (Vo/Vi), Ap = (Po/Pi)